Help Center – OTC Exchange of India

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Explore our comprehensive FAQ section for instant answers about account setup, trading, compliance, withdrawals, and more. Designed for quick reference, our FAQs help you resolve routine queries efficiently and get back to trading with confidence.

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International securities identification number (ISIN) Codes

The International Standards Organisation (ISO) has provided a standard (ISO 6166) for the numbering of securities. This standard is intended for use in any application in the trading and administration of securities. The ISIN is a code which uniquely identifies a specific securities' issue.

The ISIN is a code which uniquely identifies a specific securities' issue.

The ISIN consists of:

a prefix which is a 2 character alpha country code.
a 9 character code which identifies the security.
a check character computed using the modulus 10 formula.

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